Finding the Fourth Proportional to 79,698.88, 109,986.72 and 43,891.42

Step by Step Solution

1. Step 1: Write the proportion equation
   79,698.88 : 109,986.72 = 43,891.42 : x
2. Step 2: Convert to fraction form
   79,698.88/109,986.72 = 43,891.42/x
3. Step 3: Cross multiply
   79,698.88x = 109,986.72 × 43,891.42
4. Step 4: Simplify right side
   79,698.88x = 4,827,473,321.94
5. Step 5: Solve for x
   x = 4,827,473,321.94/79,698.88
6. Step 6: Final answer
   x = 60,571.41